63875533 has 2 divisors, whose sum is σ = 63875534. Its totient is φ = 63875532.

The previous prime is 63875527. The next prime is 63875573. The reversal of 63875533 is 33557836.

It is a happy number.

It is an a-pointer prime, because the next prime (63875573) can be obtained adding 63875533 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47375689 + 16499844 = 6883^2 + 4062^2 .

It is a cyclic number.

It is not a de Polignac number, because 63875533 - 2²⁵ = 30321101 is a prime.

It is a super-3 number, since 3×63875533³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63875503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31937766 + 31937767.

It is an arithmetic number, because the mean of its divisors is an integer number (31937767).

Almost surely, 2^63875533 is an apocalyptic number.

It is an amenable number.

63875533 is a deficient number, since it is larger than the sum of its proper divisors (1).

63875533 is an equidigital number, since it uses as much as digits as its factorization.

63875533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 226800, while the sum is 40.

The square root of 63875533 is about 7992.2170265828. The cubic root of 63875533 is about 399.7405254688.

The spelling of 63875533 in words is "sixty-three million, eight hundred seventy-five thousand, five hundred thirty-three".